Finding the Third Proportional to 7,867,139 and 12,150,083

Step by Step Solution

1. Step 1: Write the proportion equation
   7,867,139 : 12,150,083 = 12,150,083 : x
2. Step 2: Convert to fraction form
   7,867,139/12,150,083 = 12,150,083/x
3. Step 3: Cross multiply
   7,867,139x = 12,150,083 × 12,150,083
4. Step 4: Simplify right side
   7,867,139x = 147,624,516,906,889
5. Step 5: Solve for x
   x = 147,624,516,906,889/7,867,139
6. Step 6: Final answer
   x = 18,764,701.74